The Virginia-class submarine, also known as the SSN-774-class, is a class of nuclear-powered fast attack submarines

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The Virginia-class submarine, also known as the SSN-774-class, is a class of nuclear-powered fast attack submarines (hull classification symbol SSN) in service with the United States Navy. The submarines are designed for a broad spectrum of open-ocean and littoral missions. They were conceived as a less expensive alternative to the Seawolf-class attack submarines, designed during the Cold War era, and they are planned to replace the older of the Los Angeles-class submarines, twenty of which have already been decommissioned (from a total of 62 built). The class was developed under the codename Centurion, renamed to NSSN (New SSN) later on. The "Centurion Study" was initiated in February 1991.

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Location: The Virginia-class submarine, also known as the SSN-774-class
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Keywords: attack, broad, class, designed, fast, littoral, missions, navy., nuclear-powered, open-ocean, service, spectrum, ssn-774-class, states, submarine, submarines, united, virginia-class